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US20090288682A1 - Borehole cleaning device - Google Patents

Borehole cleaning device Download PDF

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Publication number
US20090288682A1
US20090288682A1 US12/454,729 US45472909A US2009288682A1 US 20090288682 A1 US20090288682 A1 US 20090288682A1 US 45472909 A US45472909 A US 45472909A US 2009288682 A1 US2009288682 A1 US 2009288682A1
Authority
US
United States
Prior art keywords
shaft
region
opening
borehole
front opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/454,729
Other languages
English (en)
Inventor
Josef Glogger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Assigned to HILTI AKTIENGESELLSCHAFT reassignment HILTI AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GLOGGER, JOSEF
Publication of US20090288682A1 publication Critical patent/US20090288682A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work

Definitions

  • the present invention relates to a borehole cleaning device including a tubular shaft, the hollow space of which opens into a front opening and which has a region adjoining the front opening, a suction opening provided in an end region of the shaft opposite the region adjoining the front opening, and a plurality of brush members provided on the region of the shaft adjoining the front opening and extending radially outwardly.
  • the present invention also relates to a method of cleaning a borehole with a borehole cleaning device described above.
  • fastening elements such as anchor rod, threaded rod, threaded sleeve, threaded anchor, or reinforcing iron
  • a borehole is formed in a constructional component such as a constructional part or workpiece.
  • the borehole is then cleaned and is filled with a hardenable mass, e.g., a multi-component mortar mass.
  • a fastening element is set into the borehole. After hardening of the mass, the fastening element has a high load-carrying capability.
  • a borehole is cleaned, e.g., blown out before it is filled with the hardenable mass, so that between the hardenable mass and the borehole wall, no separation layer, which might adversely affect adhesion of the hardenable mass to the borehole wall, is formed, e.g., by drilling dust produced at drilling or as a result of presence of moisture in the borehole.
  • German Publication DE 35 23 477 A1 discloses a borehole cleaning device having a shaft at the front end of which there is provided a loosely secured strip-off disc and which has, at least in one region, a hollow space which opens, at the front end of the shaft, into a front opening and into a radial opening spaced from the front end of the shaft. Between the front opening and the radial opening, there is provided a radially projecting elastic collar that strips off the drilling dust on the borehole wall during a reciprocating movement of the device. At the rear end of the shaft, there is provided a knob. For protection of the environment, there is provided a cover displaceably supported on the shaft and surrounding the borehole when the device is put thereon.
  • the drawback of the device described above consists in that the cleaning takes place only once by stripping the drilling dust off by the elastic collar.
  • German Publication DE 197 57 424 A1 discloses a borehole cleaning device including a tubular shaft the hollow space of which opens into a front opening and which has a region adjoining the front opening, a suction, opening radially outwardly, opening provided in an end region of the shaft opposite the region adjoining the front opening, and a plurality of brush members provided on the region of the shaft adjoining the front opening and extending radially outwardly.
  • a shank for securing the device in a chuck of a drill At the end of the shaft opposite the front opening, there is provided a shank for securing the device in a chuck of a drill.
  • a suction head having a through-opening for the shaft and a connection element for a vacuum source.
  • the drawback of the device of DE 197 57 424 A1 consists in that the radial opening, which forms the suction opening, weakens the shaft at least in some regions, so that the performance of the device is insured only with a correspondingly bulky shaft.
  • the possibility of manual handling of the device disclosed in DE 197 57 424 A1 for a long period of time is limited.
  • an object of the present invention is to provide a borehole cleaning device that can be economically produced, has a high stability, and can be easily handled manually.
  • the shaft is hollow over its entire longitudinal extent so that the hollow space of the shaft opens into the front opening, on one hand, and into the suction opening, on the other hand.
  • the hollow space connects the suction opening with the front opening at the first end of the shaft.
  • the suction opening is provided the second end of the shaft opposite the front opening, which provides for an advantageous manufacturing of the shaft and, thus, of the device itself.
  • the shaft advantageously is cut to a desired length from a tubular piece as a half-finished piece, with open ends forming the suction and front openings without any additional treatment of the shaft. Because the shaft does not have any radially opening bore, the shaft has a sufficiently stable shape even at a small wall thickness. In addition, no or very small air turbulence, which might hinder the air flow within the shaft, is produced. Thus, during the use of the device, there is a high-volume flow of the environmental air in the borehole, which insures an advantageous borehole cleaning.
  • connection means for connecting the region of the shaft adjacent to the suction opening and the region of the shaft adjoining the front opening with each other.
  • the connection mans e.g., can be formed as threaded means, which permits to screw the region of the shaft, which forms the handle and is located adjacent to the suction opening, with the shaft region adjoining the front opening.
  • the handle-forming region of the shaft and the remaining portion of the shaft can be connected with each other by material-locking means such as, e.g., soldering or welding.
  • the handle is formed by a tubular section that, on one hand, opens into environment and, on the other hand, in the mounted condition of the handle section on the shaft, has a through-channel communicating with the suction opening.
  • the additional section insures flow of the environmental air into the shaft and, thus, into the borehole.
  • the region of the shaft adjacent to the suction opening has, at least in some regions, a shaped profile, which provides for an easy and ergonomically advantageous holding of the device.
  • the shaped profile of the handle section improves handling of the borehole cleaning device.
  • the shaped profile which is formed, e.g., as serrations, is provided, e.g., directly on the outer side of the shaft region adjacent to the suction opening.
  • the shaped profile can be provided on a separate part that is securable adjacent to the second end of the shaft, e.g., by being glued, shrink-mounted, or pinned on.
  • the separate part is formed, e.g., of a plastic material.
  • a suction head having a through-opening for the shaft and a connection element for a vacuum source.
  • the drilling dust which fills the borehole, is aspirated into the suction head and is delivered in the vacuum source through the connection element.
  • a vacuum source e.g., a vacuum cleaner can be used the hose of which is connected with the connection element that is advantageously formed as a round union.
  • the blow-in, e.g., of compressed air for cleaning the borehole is not any more necessary.
  • the through-opening is provided with sealing elements projecting radially inwardly.
  • the sealing elements prevent an undesirable release of the drilling dust into environment during the operation of the borehole cleaning device in the region of the suction head with the through-opening.
  • the inventive method of cleaning of a borehole with the above-described borehole cleaning device, which also includes the suction head, includes essentially the following steps.
  • a hose of a vacuum source is connected with the connection element of suction head, and the suction head is positioned over the borehole.
  • the shaft is introduced with its first end, i.e., with its region provided with brush members, into the borehole through the through-opening of the suction head.
  • the region of the shaft provide with the brush members can be displaceably held but without a possibility of being lost, on the suction head.
  • the device is manually reciprocated for a certain time to and from the constructional component or the constructional part, whereby the brush members, which were inserted in the borehole, clean the borehole. Because of a vacuum created in the suction head and the borehole by the vacuum source, the environmental air passively flows through the shaft in the borehole and entrains the brushed-off drilling dust and the remaining drilling dust and moisture away. This insures an advantageous cleaning of the borehole, which insures adhesion of the hardenable mass to the borehole wall and, thereby, an advantageous anchoring of a chemically anchorable fastening element.
  • FIG. 1 a longitudinal cross-sectional view of a first embodiment of a borehole cleaning device according to the present invention.
  • FIG. 2 a longitudinal cross-sectional view of a second embodiment of a borehole cleaning device according to the present invention.
  • a device 11 for cleaning a borehole 7 formed in a constructional component 6 , e.g., a concrete wall, and which is shown in FIG. 1 has a tubular, hollow over its entire longitudinal extent, shaft 12 the elongate, circumferentially closed, hollow space 14 of which opens in a front opening 16 at a first end 15 of the shaft 12 and opens, at a second end 17 of the shaft 12 opposite the first end 15 , in a suction opening 18 that communicates with the front opening 16 .
  • a region 13 of the shaft 12 which adjoins the front opening 16 , is provided with several, projecting radially outwardly, and axially spaced brush elements which form brush members 21 circumferentially arranged in the region 13 of the shaft 12 .
  • the handle 26 extends in the region 19 of the shaft 12 , substantially at a right angle to a longitudinal axis 20 of the region 13 of the shaft 12 adjoining the front opening 16 .
  • a separate element 27 e.g., of a plastic material is mounted, e.g., shrinked, on the region 19 of the shaft 12 that adjoins the suction opening 18 .
  • suction head 31 having a bell-shaped housing having a through-opening 33 for the region 13 of the shaft 12 that adjoins the front opening 16 , and a connection union in form a connection element 34 for a vacuum source, not shown.
  • the through-opening 33 is provided with projecting radially inwardly, lamella-shaped sealing elements 35 .
  • hose 8 of a vacuum cleaner (not shown, that serves as a vacuum source, is secured on the connection element 34 of the suction head 31 .
  • the suction head 31 is so positioned over the borehole 7 that the region 13 of the shaft 12 , which adjoins the front opening 16 and is provided with brush member 21 , is introduced in the borehole 7 .
  • the shaft 12 is manually reciprocated in the direction of the double arrow 36 , with the brush members 21 brushing the wall of the borehole 7 off.
  • the drilling dust which is produced during the brushing process is aspirated from the borehole 7 by the suction head 31 and through the connection element 34 , with the passive environmental air being aspirated into the borehole 7 through the suction opening 18 and the hollow space 14 .
  • the device 41 for cleaning the borehole 7 which is shown in FIG. 2 , differs from the above-described device 11 in that the handle 56 and the shaft 42 are formed of several parts.
  • a region 49 of the shaft 12 adjacent to the suction opening 48 and which forms the handle 56 , and the region 43 of the shaft 12 adjacent to the front opening 46 are connected with each other by threaded connection means formed by a connection element 58 .
  • the region 43 of the shaft 12 adjacent to the front opening 46 is provided, at its second end, with a section having an outer thread
  • the region 49 of the shaft 12 adjacent to the suction opening 48 and forming the handle 56 is provided with a bore having an inner thread, so that the handle 56 can be screwed on the threaded suction of the shaft 42 .
  • the handle 56 extends, in its longitudinal direction, transverse to the longitudinal axis 50 of the region 43 of the shaft 42 , so that the region 49 of the shaft 42 adjacent to the suction opening 48 extends at an angle to region 43 of the shaft 42 provided with brush members 51 .
  • the handle 56 is provided, on its outer side, with serrations forming an appropriate profile.
  • the handle 56 has a tubular shape and is open at both of its ends 59 . During the operation of the borehole cleaning device 41 , the environmental air can passively flow through the openings at the ends 59 of the handle 56 and through the suction opening 48 and the shaft 42 into the borehole 7 .
  • the region 43 of the shaft 42 adjacent to the front opening 46 has, at its first end 45 , a separate, releasable connectable, e.g., by threaded means, element 52 on which radially projecting, brush members 51 are provided. This insures an easy replacement of the brush members 51 , if needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
US12/454,729 2008-05-21 2009-05-20 Borehole cleaning device Abandoned US20090288682A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008001908A DE102008001908A1 (de) 2008-05-21 2008-05-21 Vorrichtung zur Bohrlochreinigung
DE102008001908.9 2008-05-21

Publications (1)

Publication Number Publication Date
US20090288682A1 true US20090288682A1 (en) 2009-11-26

Family

ID=40984882

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/454,729 Abandoned US20090288682A1 (en) 2008-05-21 2009-05-20 Borehole cleaning device

Country Status (4)

Country Link
US (1) US20090288682A1 (de)
EP (1) EP2123369A3 (de)
CA (1) CA2666271A1 (de)
DE (1) DE102008001908A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130087171A1 (en) * 2011-10-11 2013-04-11 Jaimie David Gordon Flash Vortex Brush Device and Method
US9802226B2 (en) 2010-12-22 2017-10-31 Hilti Aktiengesellschaft Tool and method for cleaning a drilled hole
EP3760373A1 (de) 2019-07-02 2021-01-06 Black & Decker Inc. Kragensystem für einen staubabscheider
CN113385499A (zh) * 2021-06-09 2021-09-14 江西佰嘉实业有限公司 一种通风管道的环保处理装置
CN113385493A (zh) * 2021-06-09 2021-09-14 江西佰嘉实业有限公司 一种为管道提供除尘和吸尘的装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9539624B2 (en) 2012-04-03 2017-01-10 The Boeing Company Hole cleaning apparatus and method
DE102013207661A1 (de) 2013-04-26 2014-10-30 Adolf Würth GmbH & Co. KG Bohrer mit Bohrlochreinigungselementen zum Bohren und Reinigen eines Bohrlochs
DE102016213075A1 (de) * 2016-07-18 2018-01-18 Volkswagen Aktiengesellschaft Verfahren zur Oberflächenbearbeitung, Verfahren zur Herstellung eines Motorblockes, Vorrichtung zur Oberflächenbearbeitung und Kraftfahrzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807917A1 (de) * 1977-03-03 1978-09-07 Me Co Gruppi Perforazioni Verfahren und vorrichtung zum reinigen der bei erdaushubarbeiten verwendeten fluessigkeiten
JPH0811016A (ja) * 1994-06-30 1996-01-16 Kanden Kogyo Kk ネジ孔清掃機
DE19757424A1 (de) * 1997-12-23 1999-06-24 Hilti Ag Vorrichtung zur Bohrlochreinigung
US20030102018A1 (en) * 2001-12-03 2003-06-05 Peter Ostermeier Device for rinsing bores
US6745839B1 (en) * 1999-09-06 2004-06-08 Weatherford/Lamb, Inc. Borehole cleaning apparatus and method
US20060179607A1 (en) * 2005-02-16 2006-08-17 Ptak Patricia K Duster brush assembly for vacuum cleaners

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523477A1 (de) 1985-07-01 1987-01-08 Hilti Ag Geraet zum reinigen von bohrloechern
DE8700441U1 (de) * 1987-01-10 1987-03-19 Industrie- und Schiffs-Service R. Gradewald oHG, 2000 Wedel Vorrichtung zum Entfernen von Rückständen aus in Werkstücken eingearbeiteten Hohlräumen
DE20302753U1 (de) * 2003-02-19 2003-07-10 Mader, Andreas, 21465 Reinbek Absaugeinheit
DE102006023747B4 (de) * 2006-05-18 2008-06-05 Hans Georg Kupp Pumpe zur Reinigung eines Bohrloches
DE202007001215U1 (de) * 2007-01-22 2007-07-05 Kupp, Hans-Georg Vorrichtung zur Reinigung eines Bohrloches

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807917A1 (de) * 1977-03-03 1978-09-07 Me Co Gruppi Perforazioni Verfahren und vorrichtung zum reinigen der bei erdaushubarbeiten verwendeten fluessigkeiten
JPH0811016A (ja) * 1994-06-30 1996-01-16 Kanden Kogyo Kk ネジ孔清掃機
DE19757424A1 (de) * 1997-12-23 1999-06-24 Hilti Ag Vorrichtung zur Bohrlochreinigung
US6745839B1 (en) * 1999-09-06 2004-06-08 Weatherford/Lamb, Inc. Borehole cleaning apparatus and method
US20030102018A1 (en) * 2001-12-03 2003-06-05 Peter Ostermeier Device for rinsing bores
US20060179607A1 (en) * 2005-02-16 2006-08-17 Ptak Patricia K Duster brush assembly for vacuum cleaners

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Machine translation of abstract of DE 2807917 to Santagosti, September 1978. *
Machine translation of abstract of JP 08011016 to Mukai et al., January 1996. *
Machine translation of DE 19757424 to Obermeier, June 1999. *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9802226B2 (en) 2010-12-22 2017-10-31 Hilti Aktiengesellschaft Tool and method for cleaning a drilled hole
US20130087171A1 (en) * 2011-10-11 2013-04-11 Jaimie David Gordon Flash Vortex Brush Device and Method
US9420873B2 (en) * 2011-10-11 2016-08-23 Jaimie David Gordon Flash vortex brush device and method
EP3760373A1 (de) 2019-07-02 2021-01-06 Black & Decker Inc. Kragensystem für einen staubabscheider
US11541498B2 (en) 2019-07-02 2023-01-03 Black & Decker Inc. Collar system for a dust extractor
CN113385499A (zh) * 2021-06-09 2021-09-14 江西佰嘉实业有限公司 一种通风管道的环保处理装置
CN113385493A (zh) * 2021-06-09 2021-09-14 江西佰嘉实业有限公司 一种为管道提供除尘和吸尘的装置

Also Published As

Publication number Publication date
EP2123369A3 (de) 2011-07-06
EP2123369A2 (de) 2009-11-25
DE102008001908A1 (de) 2009-11-26
CA2666271A1 (en) 2009-11-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HILTI AKTIENGESELLSCHAFT, LIECHTENSTEIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GLOGGER, JOSEF;REEL/FRAME:022767/0922

Effective date: 20090427

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION